Setting up a microphone on Android: from basic adjustment to eliminating noise

A microphone on a smartphone Android is not just a tool for making calls, but a key element for voice notes, streams, video calls and even controlling the device via voice assistants. However, many users encounter problems: the interlocutor has difficulty hearing, the recording is distorted by noise, and voice commands are ignored by the system. The reasons may lie in both hardware malfunctions and incorrect software settings.

In this article we will look at how adjust the microphone on Android for different use scenarios - from simple calls to professional audio recordings. You'll learn how to test your microphone's performance, manually adjust sensitivity, eliminate background noise, and even use third-party apps to fine-tune your audio. And if the problem turns out to be deeper, we’ll tell you when to contact a service center.

Important: settings may vary depending on the version Android (from Android 10 to Android 15) and smartphone manufacturer (Samsung, Xiaomi, Google Pixel etc.). We will give universal recommendations, but specific models may require additional steps.

How to check if the microphone is working on Android

Before setting up the microphone, make sure that it is functioning at all. There are several simple ways to do this:

• 📞 Test call: Call another phone or use an echo test service (for example, ##36446337## on some devices Samsung). If your voice is not heard or distorted, the problem is obvious.
• 🎤 Dictaphone: Launch the standard application Dictaphone (or Google Recorder on Pixel) and make a short recording. Play it back - if the sound is intermittent or missing, the microphone requires adjustment or repair.
• 🤖 Voice Assistant: Activate Google Assistant or Bixby (on Samsung) by voice command. If the system does not respond, check the permissions for the microphone in the settings.

If the microphone does not work at all, the reasons may be hardware: a disconnected cable, damage after a fall or moisture. In this case, self-tuning will not help - you will need diagnostics at a service center. But if there is sound, but the quality leaves much to be desired, proceed to the next section.

Basic microphone settings in the Android system

Most problems with the microphone are solved through standard settings Android. Here's what you can do without installing additional applications:

1. Check permissions: Go to Settings → Applications → [Select an application, for example, WhatsApp] → Permissions and make sure that microphone access is enabled.
2. Disable noise reduction: On some devices (for example, Xiaomi or Realme), built-in noise reduction may distort the voice. Disable it in Settings → Sound → Voice enhancement (item name may vary).
3. Reset sound settings: If after updating the system the microphone began to work worse, try resetting the sound settings to factory settings. To do this, go to Settings → System → Reset settings → Reset sound settings.

On devices with Android 12 and newer in the menu Settings → Accessibility → Sound enhancement may be hidden "Microphone Boost" option - turning it on sometimes helps with quiet sound.

Manufacturer	Path to microphone settings	Features
Samsung	Settings → Device maintenance → Diagnostics → Microphone test	There is a built-in microphone test and an "Adaptive sound" option for calls.
Xiaomi/Redmi/Poco	Settings → Advanced → Special features → Sound improvement	There is often a bug with the microphone being turned off after updating MIUI.
Google Pixel	Settings → System → Gestures → Voice Access	The microphone is optimized for Google Assistant, but may not work well in third-party applications.
OnePlus/Oppo	Settings → Sound and vibration → Sound quality	There is an option "Voice optimization for calls."

⚠️ Attention: On some firmware (for example, ColorOS or Flyme) after resetting the sound settings, access to the microphone in applications may be lost. In this case, rebooting the device or re-granting permissions will help.

Fine-tuning the microphone for recordings and streams

If you use a microphone to create content - podcasts, streams on YouTube or Twitch, - standard system settings will not be enough. Here's how to improve sound quality:

• 🎧 Use an external microphone: Even an inexpensive lavalier headset (Boya BY-M1, Fifine K669B) will give better sound than the built-in microphone. Connect it via USB-C or 3.5 mm (if there is a connector).
• 🔊 Adjust sensitivity: In applications like Open Camera or Az Recorder you can manually adjust the recording level (for example, reduce the gain if the sound is distorted).
• 📱 Turn off audio processing: In the settings of the camera or voice recorder, find options like "Noise reduction" or "Audio effects" and deactivate them - they often spoil the sound.

For streamers and gamers, it will be useful to install the application Wo Mic (for transmitting sound from a microphone to a PC) or Voice Changer (for real-time voice correction). However, remember that such apps can conflict with other audio applications.

Check the physical connection (if the connector is damaged)

Disconnect the Bluetooth headset (it may conflict)

Close background applications that use the microphone

Adjust the sensitivity in the streaming application (OBS, Streamlabs)

Make a test recording -->

Eliminating noise and echo in the microphone

One of the most common questions: “Why does the interlocutor hear an echo or noise?” The reasons may be different:

• 🔇 Hardware interference: The microphone is located next to the speaker, and the sound from it goes back to the microphone (Larsen effect). The solution is to use headphones or turn down the speaker volume.
• 🌬️ Background noise: Windy weather, air conditioning, or street noise are picked up by the microphone. Turn on noise reduction in the call settings or use applications like Krispi.
• 📶 Poor connection: If the network signal is weak (2G/3G) or unstable VoIP (for example, in WhatsApp), artifacts may appear sound.

To eliminate echo in calls:

1. Turn on the mode Speakerphone and move the phone away from you.
2. In the call settings (Settings → Calls → Audio), disable the "Voice enhancement" or "Acoustic echo cancellation" option.
3. If you use Bluetooth-headset, try resetting it or connecting it again.

Setting up a microphone for voice assistants

If Google Assistant, Alice (from Yandex) or Bixby (Samsung) do not recognize your speech well, the problem may be in the microphone settings for voice input. Here's what to check:

1. Voice training: In the voice assistant settings (for example, Settings → Google → Device services → Voice input) find the "Voice training" option and go repeat the procedure.
2. Recognition language: Make sure the correct language is selected (for example, "Russian - Russia" and not "Russian - Ukraine"). This affects recognition accuracy.
3. Sensitivity "Okay, Google": On some devices, you can configure how responsive the system is to voice activation. To do this, say "Hey Google, open assistant settings" and find the "Voice match" section.

If the assistant activates by itself, try:

• Disable the "Keyword Recognition" option in the background.
• Teach the system your voice again (sometimes it helps if there are several people in the house with similar voices).
• Check if an application to save battery is blocking access to the microphone (for example, Greenify or Battery Saver).

⚠️ Attention: On devices with Android 14+ Google Assistant may restrict access to the microphone to save power. To fix this, add the application Google to the battery optimization exceptions list (Settings → Battery → Battery optimization).

Solving problems with the microphone in specific applications

Sometimes the microphone works in some applications, but does not work in others. Let's consider typical cases:

Application	Problem	Solution
WhatsApp/Telegram	The interlocutor cannot hear the voice in voice messages	Go to Settings → Storage → Clear cache applications. microphone.
Zoom/Microsoft Teams	The microphone turns off by itself	In the application settings, select the correct input device (not "Default", but a specific microphone).
TikTok/Instagram	The sound is recorded too much quiet	Use an external microphone or increase the sensitivity in the application camera settings.
Games (PUBG, Free Fire)	Voice chat does not work	Check the game settings (section "Audio") and microphone permissions in Android.

If the problem persists in one application, try:

1. Uninstall and reinstall the application.
2. Check if there is a conflict with other apps that use the microphone (for example, TeamViewer or AnyDesk may block access).
3. Update the application to the latest version - bugs with the microphone are often fixed in patches.

Why may the microphone not work in games?

In some games (for example, Call of Duty Mobile) voice chat requires additional permission to access the microphone directly inside the game, even if it is already given in settings Android. Also, the reason may be regional blocking of voice chat (for example, in some countries it is disabled by default).

When to contact the service center

Not all problems with the microphone can be solved programmatically. Here are the signs that it’s time to take the phone for repair:

• 🔧 The microphone does not work at all (no response in any application).
• 💧 The phone was dropped into water or subjected to strong vibration before the problem appeared.
• 🔊 Sound is recorded with a strong crackling sound or interruptions, even after resetting the settings.
• 📱 A notification about damage to the microphone appears on the screen (for example, “The microphone is disabled due to a hardware error”).

The cost of repairing a microphone on Android varies:

• Replacement of a microphone - from 800 to 2500 rubles (depending depending on the model).
• Cleaning the connector from oxidation - from 500 rubles.
• Diagnostics (if the reason is unclear) - usually free, but in some services up to 300 rubles.

⚠️ Attention: If you disassembled the phone yourself and after that the microphone stopped working, the service center may refuse during warranty repairs. Also be careful with “handicraft” workshops - non-original microphones often have worse sound quality.

FAQ: Frequently asked questions about setting up the microphone on Android

Why does the microphone work in the voice recorder, but does not work during calls?

This is a typical problem when the bottom microphone (responsible for calls) is damaged, and the top one (for recordings) works fine. Also check the network settings - in VoLTE or 4G calls there may be conflicts with the microphone. Try disabling VoLTE the Settings → Mobile network → Advanced.

How to increase the microphone volume on Android?

In most cases, the microphone volume is not adjusted at the system level, but in a specific application (for example, in WhatsApp or ZoomFor global gain, you can use applications like Microphone Amplifier, but they are require root access. An alternative is an external microphone with a sensitivity control.

The microphone began to work worse after updating Android. What should I do?

This is a common problem, especially on devices Xiaomi, Samsung And OnePlus. Try:

1. Clear system cache (Settings → Storage → Clear cache).
2. Roll back to the previous firmware version (if available backup).
3. Wait for the patch - manufacturers often release fixes 1-2 weeks after a major update.

Is it possible to use a Bluetooth headset as the main microphone?

Yes, but the sound quality will depend on the headset model. For calls this is usually enough, but for recording podcasts or streams it is better. use a wired headset or a specialized microphone with USB-C. In the sound settings (Settings → Connected devices → [Headset name] → Sound settings), you can select the priority input device.

Why can’t they hear me in games, although the microphone works in other applications?

In most mobile games (for example, PUBG Mobile or Call of Duty), voice chat works through separate servers. Check:

• Is voice chat enabled in the settings. games (sometimes it is disabled by default).
• Is antivirus or VPN blocking access to the microphone.
• Does your version of the game support voice chat in your region (in some countries it is disabled).